Wemos D1 Pro Mini / Mini ESP8266 / Mini CP2104 Esp-12 Wifi Development Board

D1 Mini

• Version : V1.0
  
• A convenient Micro USB connection
  
• CH340 USB Serial Converter and Programming Control Electronics
  
• Compatible with Arduino
  
• Compatible with NodeMCU
  
• On Board 3.3V Regulator
  
• Side Mount RESET button

D1 Pro Mini

• 11 digital input/output pins
  
• Interrupt/pwm/I2C/one-wire
  
• 1 analog input(3.2V max input)
  
• 16M bytes(128M bit) Flash
  
• External antenna connector
  
• Built-in ceramic antenna
  
• New CP2104 USB-TO-UART IC
  
• Same size as D1 mini, but more light

D1 Mini CP2104

• Voltage D1 Mini: 5V DC (4.5~ 6V) Operating
  
• Current: ~80mA (Supply above 500mA) Logical
  
• Voltage (Inputs/Outputs): 3.3V
  
• SoC: ESP32 (ESP32-D0WDQ6)
  
• CPU: Dual core Tensilica LX6 (32 bit) Clock; Frequency: 240MHz
  
• SRAM: 520KB External Flash
  
• Memory: 4MB Digital
  
• Pins GPIO: 34 (including all peripherals)
  
• UART: 2; SPI: 3; I2C: 2; Capacitive Touch Sensors: 10 SD
  
• WCH CH340 USB to UART Bridge
  
• ESP-WROOM-32 FCC certified Wi-Fi and Bluetooth module
  
• PCB-mounted antenna
  
• Onboard Micro-USB connector (i.e., USB Micro-B)

Esp8266 Wemos D1 Mini V3.0 4MB

• Model: Wemos D1 Mini V3.0
  
• PCB Color: Blue
  
• Dimensions: 34mm x 26mm
  
• Micro-USB Supply Voltage: 5V DC
  
• Operating Voltage: 3.3V
  
• Current Consumption: >400mA
  
• Input / Output Voltage: 3.3V DC (Do not use 5V )
  
• Number of Digital Pins: 11 digital input / output pins
  
• Analog Pins: 1 ADC
  
• Interfaces: GPIO, UART, I2C, HSPI, PWM
  
• LED Indication: Pin D4 (GPIO2) MCU
  
• Power Switch : ESP8266EX 
  
• USB-Serial Converter Chip: CH340G 
  
• Flash memory: 4 MB Baud rate: 300-4608000 baud, default 115200 bps Support for AT commands, cloud server and development kits (SDK), firmware upgrade